Bottle cap



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GHARLES'C. PARKER, or B AL'iiMoRE, MARYLANDQASSIGNR' 'ro THE HYGIENIC BOTTLE CAP COMPANY, ver BALTIMORE, MARYLAND, A coaroEA'rIoN' or MARYLAND.

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To all whom t may concern:

Be it known that I, CHARLES C. PARKER, a citizen of the United States of America, residing in the city of Baltimore, State of Maryland, have invented certain new and -useful Improvements in Bottle Caps, of

which the following is a specification.

- Bottle and jar caps of the type which set inside'the lip of the bottle or jar, and are provided with a tab or tongue by means of which they are lifted and withdrawn are very familiar to the. public, particularly in y their use in connection-withbottles and jars for dispensin milk. These caps, in the form in'whic they are used, embody/numerous defects and, objectionable features which have caused them to be regarded morel in the light of the most available eX- pedient than as anV actual solution 'of the problem 4presented by the necessity for a cheap and effective closure for jars and bottles, particularly milk bottles.

Chief among these defects are leakage, lack of protection to the milk and the lip of the bottle over which the milk is poured, and almost universal failure of the tab by breakage in `the` attempt to use it to withdraw the cap; also the tabs are ordinarily so embedded in the aperture from :which they are cut that they cannot be raised to a position in which `they can be grasped without the use of some instrument, as a knife, which would be almost equally effective in removing the cap without the tab, and the cap may be removed and a portion of the milk withdrawn and some other liquid substituted, or the milk may be otherwise tampered with, and the cap replaced by an unauthorized person without leaying evidence of the fact v The present inve'iition relates to a cap or jar or bottle closure, in which these defects v'engagement by the fingers, so that nolinit has suicient strength to overcome the resistance offered in removing the ca without strument is necessary to raise the tab o r remove the cap, and whichv is so formed that tearing, and in addition to these a vantages,

the ca is so constructed,andl when sealed,-

is so tightly engaged, that it cannot be re- BOTTLE car.

'application of the cap.

I Specification of Letters Patent, l Patned Maw- 2, 1922., Application filed-January 23, 1920;A Serial No. 353,566. v

' in connectionwith a fragmentary section of the bottle neck sufiicient to illustrate the In the drawing: Figure 1 is a vertical central section, showing the cap applied to a bottle.

Figure 2`is a top plan of the cap.

Figure is a plan of the plug or stopper member. Figure l is a bottom plan of the cap. Figure 5 is a plan of the plug reinforcing and closing member. l

Referring to the drawings by numerals: The bottle or j ar neck is shown as having the opening enlarged at the top to `form an annular chamber, 2, and a shoulder or seat, t3, also annular or extending .around the inner circumference of the bottle opening.

-The cap, indicated in a general way by referencecharacter, 40,' preferably consists of threepieces, an outer lip covering member, 5, a hollow plug member, 4, in the form of a flanged paper disc, and a reinforcing and closing member 8. The lip covering member is curled downward at .the periphery, 6, to cover the lip of the bottle, and extends downward over the edge of. the bottle, covering the same over the entire area which is ordinarily. wet in pouring liquid from the bottle, protec'ting'the bottle lip at this point fromy dirtr which would otherwise accumulate and `be mixed with the liquid when poured. This outer or lip covering member, 5, is preferably of comparatively thin, tough paper, though theA matter of relative thickness is ynot considered of primary importance. This member is cut near the center onA an are or U pre ferably concentric with the cap, the -cut, 7, being sufficient to form a suitable lifting tab. This tab'is formed by cutting through the outer or lip covering member, 5,- andthe being understod that the outside or lip coveringv member, 5, is secured to the plug member, 4, by a water proof paste,'and that the closing or sealing member, 8, is likewise fastened to the inside of the plug member.

The cut, which forms the tab, severs both the outer member, 5, and the plug member, 4, so the tab is double as hereinafter described. In the form of the invention shown, the ends of the arcuate cut in thestruction or expedient -referred to consistsv in the formation ofthe stopper or plug member, 4, just beyond each end, 10, of the1 arcuate cut, 7, forming the tab, 9, a secondary cut, 11, transverse to the cut, 7, preferably curved around such point, 10, and comprising from 30 to 60 degrees less than a complete circle, the .same being drawn around and concentric with the end ofthe cut.

It will be understood that there is formed in the plug, 4, a cut, 7, which registers with together, the completed tab, 13, being formed of the two overlying tabs, 12 and 9, also the inner closing or reinforcing member, 8, is pasted to the plug member, 4,0n thefinside of or beneath same so that the ends of the cut, 7, with the non-tear encircling cuts, 11, are reinforced above and below. Thus we have a double tab formed with a non-tearing device at the base, the same being reinforced above and below. lhen an excessive strain is applied to the tab in removing the cap in case the plug portion, 9, should tend to tear at the ends, 10, of the arcuate cut, and this cut is extended for a fraction of an inch, it merely meets the arcuate cut, 11. Where the-tende'ncy to sever the material is `distributed over an extended curved surface or edge, the actual tendency to part the bers along the line on which they are already torn, being thus Aeliminated and the rupture of the material completely arrested except at the ends of the extended curved surface or edge.

Having further reference to Figure 1, it will be noted that this tab is raised or crimped near-the base at 14, in a reverse curve which raises it to a plane above the cap and that it is supported in this position by a proturbance, 15', raised on the sealing and reinforcingmember, 8, directly beneath the tab, and in the aperture in th'e upper members, formed by cutting the tab.

Having further reference to the plug member, 4, it willbe noted that this member is in the form of a short hollow cylinder,

having an end, v16, secured to the outer orf'.

lip covering member 5, on one. side and' reinforced on the other side by the reinforcing and closing member, 8', the sides or cylindrical portion proper are indicated by reference character, 17, forming a plug,

which is inserted in the chambered portion,v

2, of the bottle neck, and this lplug portion is A caused to fit tightly againstl the walls of the chamberetl portion, 2, as follows: lThe lower edges of the cylinder proper, 17, are given an outward and upward reverse turn at' 1S, so that they are-in eii'ectI dou-bled back on themselves, forming an' upwardly turned flange, 19, and the extreme edge'ofthe material is turned sharply outward at 20, preferably either at QOdegrees or a slightly greater angle, so that'the edge of the paper at 21 is turned directly against the wall of the chambered portion of the neck at a sharp angle, and 'pressed tightly against the walt 'as the cap is thrust into the bottle opening.

When theV cap is thus tightly seated, it

will be apparent that it can only be with# drawn by insertinga sharp instrument under the edges, 6, by which the edges would be apparently damaged, or by inserting a sharp instrument in the cap, which would also cause an apparent injury, or by pulling on the tab, 13, which would tear the edge of the cap as it is removed and cause distortion of the tab, so that in any event, if the cap is removed and replaced, the fact that it has been once removed will be apparent.

The cap is made from paper by means of suitable dies, cutting and pressing the parts, and then pastille` and assembling them.

I have thus detail, a single embodiment of my invention in order that its nature and operation may ,be clearly understood. However, the specific vterms herein are used descriptively rather than in a limiting sense, the scope of :the invention being defined inthe claims. l

What I claim and desire to secure by Letters Patent is:

1. A bottle cap of sheet material, having a U shaped cut, forming a lifting tab with transverse cuts at the end of the U to distribute the stress and prevent tearing.

2. A bottle cap of sheet material having a U shaped cut forming a lifting tab with cuts curved about the ends of the out to prevent tearing.

described, specifically and in` neigt/oe 3. A Dott-ie fonsisting of an outer lip covering member of sheet material, a vhollow plug also of sheet material, the two being pasted together in vclose contact, both members having a vU shapedcut forming a .ing of an outer lip covering member, a plug lmember of sheet material, having its edges lifting tab, the plug member having aout adjacent the ends of the 'U shaped cut to distribute'the Stress applied to the tab and' prevent tearing. 4. v v 4. A bottle cap of sheet material, consisting of an outer lip covering member, a plug member, the twolbeing secured together in Close contact,'a U Shapedrut in both mem.- bers forming a lifting tab, the plug' member 4havinga transverse cut adjacent each end of the U shaped .c'ut to distribute and prevent 'orflimitA tearing, and an inner closing member secured tothe inside of the plug.

`5. A bottle cap of sheet material, consisting of an outer lip covering member, a plug Amember of sheetvmaterial, having its edges turned'downward and then doubled outward and upward, doubling the `bottom edge of -surface of 'the bottle neck., so that it is the plug, the 'extreme edge being turned out- 6. A bottle cap of sheet material, consistturned downward and then doubled outward' and upward, Adoubling the bottom edge of the plug, the 'extreme edge being turned'outA ward substantialljv at right angles l.sc the edge of the material contactswith the inner turned slightly-upward from a right-angular position as vit is' inserted,giving it a `toggle action with increased pressure on'the walls of the bottle neck 'as it is withdrawn. Signed by me at Baltimore, Maryland, this 21st day of January, 1920.

, HARLES Witnesses: p

'EMMA AHLSLEGER, SELMA STERN. v.

of PARKER. 

